LED display module and LED display device

Abstract

The utility model provides an LED (light-emitting diode) display module and an LED display device, and the LED display module comprises an LED lamp panel, a light guide plate and a light guide plate, the base is provided with an inner cavity, the plug connector is arranged in the inner cavity, an opening is formed in the rear surface of the base so that the plug connector can be connected with an external plug-in matching piece, and a connecting part is arranged on the rear surface of the base so as to be connected with an external connecting piece; the sealing piece comprises a piece body, a first rib and a second rib, the piece body comprises a first receding opening and a second receding opening, the opening is located on the inner side of the first receding opening, the connecting part is located on the inner side of the second receding opening, and the first rib is arranged at the position of the second receding opening. The second ribs and the first ribs are arranged at intervals and located on the sides, away from the second receding openings, of the first ribs, and the first ribs and the second ribs both protrude forwards out of the front surface of the sheet body and protrude backwards out of the rear surface of the sheet body. According to the technical scheme, the problem that in the prior art, a connecting part is prone to being squeezed by a sealing ring to crack can be effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of LED display, and in particular, to an LED display module and an LED display device. Background Art

[0002] With the continuous development of technology, various LED display devices appear in people's daily life to meet different viewing needs. Among them, an LED display device usually consists of a plurality of LED boxes and an LED display module arranged on the front side of the LED box. The LED display module usually includes a base and an LED light board arranged on the front side of the base. A connecting part is usually arranged on the rear surface of the base, and a connecting piece capable of connecting with the connecting part is arranged on the LED box. The plug-in part on the rear side of the LED light board needs to be plugged with the plug-in matching part on the LED box through the opening of the base.

[0003] When the LED display device is used in an outdoor scene, the LED display module has a waterproof requirement to prevent water from entering the inner cavity of the base. In this field, sealing rings are usually arranged at the opening and the connecting part. When the LED display module is connected to the LED box, the sealing ring will be squeezed, causing the sealing ring itself to deform, so that the sealing ring squeezes the connecting part, making the connecting part easily cracked by the squeezing of the sealing ring, and further possibly causing the connection between the LED display module and the LED box to fail. Summary of the Utility Model

[0004] The main purpose of the utility model is to provide an LED display module and an LED display device to solve the problem that the connecting part in the related technology is easily cracked by the squeezing of the sealing ring.

[0005] To achieve the above purpose, according to one aspect of the utility model, an LED display module is provided, including: an LED light board, including a substrate and a plug-in part arranged on the rear side of the substrate; a base connected to the rear side of the LED light board, the base having an inner cavity, the plug-in part being arranged in the inner cavity, an opening being formed on the rear surface of the base so that the plug-in part can be connected to an external plug-in matching part, and a connecting part being arranged on the rear surface of the base to connect an external connecting piece; a sealing piece, including a piece body, a first rib and a second rib, the piece body including a first avoidance opening and a second avoidance opening, the opening being located inside the first avoidance opening, the connecting part being located inside the second avoidance opening, the first rib being arranged at the second avoidance opening and connected to the piece body, the second rib being arranged at an interval from the first rib, the second rib being located on the side of the first rib away from the second avoidance opening, the second rib being connected to the piece body, and both the first rib and the second rib protruding forward from the front surface of the piece body and protruding backward from the rear surface of the piece body.

[0006] Further, the connecting part is a nut seat, there are multiple connecting parts, and the sealing sheet includes multiple second avoidance openings arranged in one-to-one correspondence with the multiple connecting parts.

[0007] Further, there are multiple openings, the sealing sheet includes multiple first avoidance openings arranged in one-to-one correspondence with the multiple openings, and at least one connecting part is arranged between two adjacent openings.

[0008] Further, the sealing sheet further includes a third rib and a fourth rib. The third rib is arranged at the first avoidance opening and is connected to the sheet body. The fourth rib is arranged at an interval from the third rib. The fourth rib is located on the side of the third rib away from the first avoidance opening and is connected to the sheet body. Both the third rib and the fourth rib protrude forward from the front surface of the sheet body and both protrude backward from the rear surface of the sheet body.

[0009] Further, the sealing sheet further includes a reinforcing rib arranged on the sheet body. The reinforcing rib is located between the third rib and the fourth rib.

[0010] Further, there are multiple openings, the sealing sheet includes multiple first avoidance openings arranged in one-to-one correspondence with the multiple openings, a connecting part group is arranged between two adjacent openings, the connecting part group includes at least two connecting parts, and at least part of the two second ribs corresponding to two adjacent connecting parts in the connecting part group overlap.

[0011] Further, the front surfaces of the first rib and the second rib are flush, and the height of the forward protrusion of the first rib and the second rib is between 0.6 mm and 1 mm; and / or, the rear surfaces of the first rib and the second rib are flush, and the height of the backward protrusion of the first rib and the second rib is between 0.6 mm and 1 mm.

[0012] Further, an installation groove for accommodating the sealing sheet is arranged on the base.

[0013] Further, the sealing sheet protrudes backward from the connecting part.

[0014] According to another aspect of the present utility model, an LED display device is provided, which includes an LED box body and an LED display module arranged on the front side of the LED box body, and the LED display module is the above-mentioned LED display module.

[0015] Applying the technical solution of the present utility model, the LED light board can achieve a display effect. The base provides a support foundation for each component of the LED display module. The LED light board is connected to the front side of the base. The LED light board includes a substrate and a plug-in component arranged on the rear side of the substrate. The base has an inner cavity, and the plug-in component is arranged in the inner cavity. An opening is formed on the rear surface of the base so that the plug-in component can pass through the opening and be connected to an external plug-in mating component, thereby transmitting an external control signal or electric energy to the LED light board. A connecting portion is arranged on the rear surface of the base to connect an external connecting piece. Specifically, the connecting piece is arranged on the LED box body, and the connecting portion is connected to the connecting piece to realize the connection between the base and the LED box body; the sealing piece includes a piece body, a first rib and a second rib. The piece body includes a first avoidance opening and a second avoidance opening. The opening is located inside the first avoidance opening, and the connecting portion is located inside the second avoidance opening, so that the piece body can prevent water from entering the inner cavity from the connecting portion and the opening, thereby ensuring the stable operation of the LED light board; the first rib is arranged at the second avoidance opening and is connected to the piece body. The second rib is arranged at an interval from the first rib. The second rib is located on the side of the first rib away from the second avoidance opening. The second rib is connected to the piece body. Both the first rib and the second rib protrude forward from the front surface of the piece body and both protrude backward from the rear surface of the piece body. That is to say, the first rib, the second rib and the front surface of the piece body form a first avoidance groove, and the first rib, the second rib and the rear surface of the piece body form a second avoidance groove; when the LED display module and the LED box body are connected, the sealing piece will be extruded. When the first rib, the second rib and the piece body are extruded, the first rib, the second rib and the piece body will all deform towards the first avoidance groove and the second avoidance groove, and the first rib will not deform towards the connecting portion, thereby reducing the extrusion force received by the connecting portion, thereby reducing the possibility that the connecting portion is cracked by the extrusion of the sealing piece, thereby ensuring the stable connection between the connecting portion and the connecting piece, and further ensuring the stable connection between the LED display module and the LED box body. Therefore, the technical solution of the present application can effectively solve the problem that the connecting portion is easily cracked by the extrusion of the sealing ring. Description of the Drawings

[0016] The specification drawings forming a part of the present application are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0017] Figure 1 The three-dimensional structural schematic diagram of the sealing piece of the LED display module according to the embodiment of the present utility model is shown;

[0018] Figure 2 Shown is Figure 1 The enlarged schematic diagram of part A of the sealing piece of the LED display module of

[0019] Figure 3 shows Figure 1 a three-dimensional structural schematic diagram of the base of the LED display module of

[0020] Figure 4 shows Figure 1 a cross-sectional schematic diagram of a partial structure of the LED display module of

[0021] Figure 5 shows Figure 4 an enlarged schematic diagram of part B of the LED display module of

[0022] Among them, the above-mentioned drawings include the following reference numerals:

[0023] D1, the height of the first rib and the second rib protruding forward; D2, the height of the first rib and the second rib protruding backward;

[0024] 10, base; 11, inner cavity; 12, opening; 13, connecting part; 130, connecting part group; 14, mounting groove;

[0025] 20, sealing sheet; 21, sheet body; 211, first avoidance opening; 212, second avoidance opening; 22, first rib; 23, second rib; 231, first rib segment; 232, second rib segment; 233, common rib segment; 24, third rib; 25, fourth rib; 26, reinforcing rib. Detailed implementation manners

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and in no way restrictive of the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0027] Such as Figures 1 to 5As shown in the figure, the present application provides an LED display module. An embodiment of the LED display module of the present application includes: an LED lamp board, a base 10, and a sealing sheet 20; the LED lamp board includes a substrate and a plug-in member disposed on the rear side of the substrate; the base 10 is connected to the rear side of the LED lamp board, the base 10 has an inner cavity 11, the plug-in member is disposed in the inner cavity 11, an opening 12 is formed on the rear surface of the base 10 so that the plug-in member can be connected to an external plug-in mating member, and a connecting portion 13 is disposed on the rear surface of the base 10 to connect an external connecting member; the sealing sheet 20 includes a sheet body 21, a first rib 22, and a second rib 23. The sheet body 21 includes a first avoidance opening 211 and a second avoidance opening 212. The opening 12 is located inside the first avoidance opening 211, and the connecting portion 13 is located inside the second avoidance opening 212. The first rib 22 is disposed at the second avoidance opening 212 and is connected to the sheet body 21. The second rib 23 is disposed at an interval from the first rib 22. The second rib 23 is located on a side of the first rib 22 away from the second avoidance opening 212. The second rib 23 is connected to the sheet body 21. Both the first rib 22 and the second rib 23 protrude forward from the front surface of the sheet body 21 and protrude backward from the rear surface of the sheet body 21.

[0028] Applying the technical solution of this embodiment, the LED lamp board can achieve a display effect. The base 10 provides a support foundation for each component of the LED display module. The LED lamp board is connected to the front side of the base 10. The LED lamp board includes a substrate and a plug-in member disposed on the rear side of the substrate. The base 10 has an inner cavity 11, and the plug-in member is disposed in the inner cavity 11. An opening 12 is formed on the rear surface of the base 10 so that the plug-in member can pass through the opening 12 to be connected to an external plug-in mating member, thereby transmitting an external control signal or electric energy to the LED lamp board. A connecting portion 13 is disposed on the rear surface of the base 10 to connect an external connecting member. Specifically, the connecting member is disposed on the LED box body, and the connecting portion 13 is connected to the connecting member to realize the connection between the base 10 and the LED box body; the sealing piece 20 includes a piece body 21, a first rib 22 and a second rib 23. The piece body 21 includes a first avoidance opening 211 and a second avoidance opening 212. The opening 12 is located inside the first avoidance opening 211, and the connecting portion 13 is located inside the second avoidance opening 212, so that the piece body 21 can prevent water from entering the inner cavity 11 from the connecting portion 13 and the opening 12, thereby ensuring the stable operation of the LED lamp board; the first rib 22 is disposed at the second avoidance opening 212 and connected to the piece body 21. The second rib 23 is disposed at an interval from the first rib 22. The second rib 23 is located on a side of the first rib 22 away from the second avoidance opening 212. The second rib 23 is connected to the piece body 21. Both the first rib 22 and the second rib 23 protrude forward from the front surface of the piece body 21 and both protrude backward from the rear surface of the piece body 21. That is to say, the first rib 22, the second rib 23 and the front surface of the piece body 21 form a first avoidance groove, and the first rib 22, the second rib 23 and the front surface of the piece body 21 form a second avoidance groove; when the LED display module is connected to the LED box body, the sealing piece 20 will be squeezed. When the first rib 22, the second rib 23 and the piece body 21 are squeezed, the first rib 22, the second rib 23 and the piece body 21 will deform toward the first avoidance groove and the second avoidance groove, and the first rib 22 will not deform toward the connecting portion 13, thereby reducing the squeezing force received by the connecting portion 13, thereby reducing the possibility that the connecting portion 13 is squeezed and cracked by the sealing piece 20, thereby ensuring the stable connection between the connecting portion 13 and the connecting member, and further ensuring the stable connection between the LED display module and the LED box body. Therefore, the technical solution of this embodiment can effectively solve the problem that the connecting portion is easily squeezed and cracked by the sealing ring.

[0029] It should be noted that in this embodiment, the connecting portion 13 is a nut seat, and the connecting member is a fastening bolt. The stable connection between the LED display module and the LED box body is achieved through the threaded connection between the nut seat and the fastening bolt. In addition, in this article, "front" used to describe the orientation refers to the direction in which the LED display module faces the viewer when the LED display device is hung on the wall, and "rear" refers to the direction in which the LED display module is away from the viewer when the LED display device is hung on the wall.

[0030] As Figure 3 shown, in this embodiment, an installation groove 14 for accommodating the sealing sheet 20 is provided on the base 10. Specifically, the contour of the inner surface of the installation groove 14 is adapted to the outer contour of the sealing sheet 20.

[0031] As Figures 1 to 3 shown, there are multiple connecting portions 13, and the sealing sheet 20 includes multiple second avoidance openings 212 corresponding to the multiple connecting portions 13 one by one. Specifically, setting the connecting portions 13 to be multiple can increase the connection points between the base 10 and the LED box body, thereby enhancing the connection stability between the LED display module and the LED box body. The setting of the multiple second avoidance openings 212 and the provision of a first rib 22 and a second rib 23 in each second avoidance opening 212 can enable the sealing sheet 20 to seal each connecting portion 13 and also reduce the possibility of each connecting portion 13 being broken by the extrusion of the sealing sheet 20.

[0032] As Figures 1 to 3 shown, there are multiple openings 12, and the sealing sheet 20 includes multiple first avoidance openings 211 corresponding to the multiple openings 12 one by one. At least one connecting portion 13 is provided between two adjacent openings 12. Specifically, the base 10 has a cuboid structure, and the multiple openings 12 are arranged along the length direction of the base 10. Providing at least one connecting portion 13 between two adjacent openings 12 can ensure the connection strength between the base 10 and the LED box body to avoid the weak connection strength of the part between two adjacent openings 12 and the LED box body.

[0033] Furthermore, as Figures 1 to 3 shown, in this embodiment, a connecting portion group 130 is provided between two adjacent openings 12. The connecting portion group 130 includes at least two connecting portions 13, and at least part of the two second ribs 23 corresponding to two adjacent connecting portions 13 in the connecting portion group 130 overlap. Specifically, as Figure 2As shown, a connecting part group 130 includes two connecting parts 13. The two connecting parts 13 are arranged along the width direction of the base 10. The two connecting parts 13 are respectively a first connecting part and a second connecting part. The second rib 23 of the first connecting part includes a first rib segment 231, and the second rib 23 of the second connecting part includes a second rib segment 232. The overlapping part of the second rib 23 of the first connecting part and the second rib 23 of the second connecting part is a common rib segment 233. The common rib segment 233 can belong to either the second rib 23 of the first connecting part or the second rib 23 of the second connecting part. The common rib segment 233 can effectively reduce the thickness at the connection of the second rib 23 of the first connecting part and the second rib 23 of the second connecting part.

[0034] As Figures 1 to 3 shown, the sealing sheet 20 further includes a third rib 24 and a fourth rib 25. The third rib 24 is arranged at the first relief opening 211 and is connected to the sheet body 21. The fourth rib 25 is arranged at an interval from the third rib 24. The fourth rib 25 is located on the side of the third rib 24 away from the first relief opening 211. The fourth rib 25 is connected to the sheet body 21. Both the third rib 24 and the fourth rib 25 protrude forward from the front surface of the sheet body 21 and protrude backward from the rear surface of the sheet body 21. Specifically, the arrangement of the third rib 24 and the fourth rib 25 can reduce the extrusion force exerted on the mounting groove 14 by the sealing sheet 20 when the sealing sheet 20 is squeezed.

[0035] As Figure 1 and Figure 2 shown, the sealing sheet 20 further includes a reinforcing rib 26 arranged on the sheet body 21. The reinforcing rib 26 is located between the third rib 24 and the fourth rib 25. Specifically, the arrangement of the reinforcing rib 26 can ensure the overall structural strength of the sealing sheet 20.

[0036] As Figure 4 and Figure 5As shown, the front surfaces of the first rib 22 and the second rib 23 are flush with each other, and the height D1 by which the first rib 22 and the second rib 23 protrude forward is between 0.6 mm and 1 mm; the rear surfaces of the first rib 22 and the second rib 23 are flush with each other, and the height D2 by which the first rib 22 and the second rib 23 protrude backward is between 0.6 mm and 1 mm. Specifically, for the sealing sheet 20 that meets the above requirements, it can not only ensure that the first avoidance groove and the second avoidance groove are large enough to have sufficient space to avoid the deformation of the first rib 22, the first rib 22, and the sheet body 21 when being squeezed, but also ensure that the sealing sheet 20 has sufficient structural strength; the height D1 by which the first rib 22 and the second rib 23 protrude forward can be 0.6 mm, 0.67 mm, 0.72 mm, 0.88 mm, 0.9 mm, or 1 mm; the height D2 by which the first rib 22 and the second rib 23 protrude backward can be 0.6 mm, 0.63 mm, 0.78 mm, 0.85 mm, 0.91 mm, or 1 mm.

[0037] As Figure 4 shown, the sealing sheet 20 protrudes backward from the connecting portion 13. Specifically, when the LED display module is connected to the LED box body, the portion of the sealing sheet 20 that protrudes backward can be squeezed and deformed and abuts between the LED display module and the LED box body, thereby ensuring the sealing function of the sealing sheet 20.

[0038] The present application also provides an LED display device. The LED display device of the present application includes an LED box body and an LED display module disposed on the front side of the LED box body, wherein the LED display module is the above-mentioned LED display module. The above-mentioned LED display module can effectively solve the problem that the connecting portion in the related art is easily squeezed and cracked by the sealing ring, and the LED display device having the above-mentioned LED display module also has the above-mentioned advantages.

[0039] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, perpendicular, horizontal", and "top, bottom" is usually based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description. Without contrary description, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and thus cannot be understood as a limitation on the protection scope of the present utility model; the orientation words "inside, outside" refer to the inside and outside relative to the contour of each component itself.

[0040] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Without additional statements, the above terms have no special meanings, so it should not be construed as a limitation on the protection scope of the present utility model.

[0041] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, the present utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An LED display module, characterized in that: include: The LED light board comprises a base plate and a connector arranged at the rear side of the base plate; A base (10) connected to the rear side of the LED light board, the base (10) having an inner cavity (11), the plug connector being arranged in the inner cavity (11), an opening (12) being provided on the rear surface of the base (10) so that the plug connector can be connected to an external plug connector, and a connecting portion (13) being provided on the rear surface of the base (10) so as to be connected to an external connecting component; A sealing sheet (20) comprises a sheet body (21), a first rib (22) and a second rib (23); the sheet body (21) comprises a first avoidance opening (211) and a second avoidance opening (212); the opening (12) is located on the inner side of the first avoidance opening (211); the connecting portion (13) is located on the inner side of the second avoidance opening (212); the first rib (22) is arranged at the second avoidance opening (212) and is connected to the sheet body (21); the second rib (23) is arranged at a distance from the first rib (22); the second rib (23) is located on a side of the first rib (22) away from the second avoidance opening (212); the second rib (23) is connected to the sheet body (21); the first rib (22) and the second rib (23) both protrude forward from a front surface of the sheet body (21) and both protrude backward from a rear surface of the sheet body (21).

2. The LED display module according to claim 1, characterized in that: The connecting portion (13) is a nut seat, there are a plurality of connecting portions (13), and the sealing sheet (20) comprises a plurality of the second avoidance openings (212) arranged in a one-to-one correspondence with the plurality of connecting portions (13).

3. The LED display module according to claim 2, characterized in that: There are a plurality of openings (12), the sealing sheet (20) comprises a plurality of the first avoidance openings (211) arranged in one-to-one correspondence with the plurality of openings (12), and at least one connecting portion (13) is arranged between two adjacent openings (12).

4. The LED display module according to claim 3, characterized in that: The sealing sheet (20) further comprises a third rib (24) and a fourth rib (25); the third rib (24) is arranged at the first avoidance opening (211) and connected to the sheet body (21); the fourth rib (25) is arranged at a distance from the third rib (24); the fourth rib (25) is located on a side of the third rib (24) away from the first avoidance opening (211); the fourth rib (25) is connected to the sheet body (21); the third rib (24) and the fourth rib (25) both protrude forward from a front surface of the sheet body (21) and both protrude backward from a rear surface of the sheet body (21).

5. The LED display module according to claim 4, characterized in that: The sealing sheet (20) further comprises a reinforcing rib (26) arranged on the sheet body (21), wherein the reinforcing rib (26) is located between the third rib (24) and the fourth rib (25).

6. The LED display module according to claim 2, characterized in that: There are a plurality of openings (12); the sealing sheet (20) comprises a plurality of first avoidance openings (211) arranged in one-to-one correspondence with the plurality of openings (12); a connection portion group (130) is arranged between two adjacent openings (12); the connection portion group (130) comprises at least two connection portions (13); and two second ribs (23) corresponding to two adjacent connection portions (13) in the connection portion group (130) are arranged to at least partially overlap.

7. The LED display module according to any one of claims 1 to 6, characterized in that: The front surface of the first rib (22) and the front surface of the second rib (23) are arranged flush with each other, and the height (D1) of the first rib (22) and the second rib (23) protruding forward is between 0.6 mm and 1 mm; and / or, The rear surface of the first rib (22) and the rear surface of the second rib (23) are arranged flush with each other, and the height (D2) of the first rib (22) and the second rib (23) protruding backwards is between 0.6 mm and 1 mm.

8. The LED display module according to any one of claims 1 to 6, characterized in that: The base (10) is provided with a mounting groove (14) for accommodating the sealing sheet (20).

9. The LED display module according to any one of claims 1 to 6, characterized in that: The sealing sheet (20) protrudes backwards from the connecting portion (13).

10. An LED display device, characterized in that: It comprises an LED box and an LED display module arranged on the front side of the LED box, and the LED display module is the LED display module according to any one of claims 1 to 9.

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